期刊论文

Plants remediation effects of peat soil on lead-zinc tailings

中文

中南林业科技大学学报

1673-923X

2019

39

2

93-100

10.14067/j.cnki.1673-923x.2019.02.015

201509037:环保公益性行业科研专项 2016-59:湖南省环保科研项目

本校为第一机构

针对铅锌矿渣物理结构差、毒性高、植物成活率低的问题,研究了湖南郴州资兴铅锌矿渣在泥炭土改良下的植物修复效果。以泡桐Paulownia fortunei、夹竹桃Nerium oleander 和苎麻Boehmeria nivea 为材料,在不同泥炭土浓度(梯度为:CK:0、A1:10%、A2:20%、A3:30%)改良铅锌渣下进行盆栽实验,测定了植物根、茎、叶生物量,根系构型指标、植物与矿渣铅锌含量、矿渣根际土壤pH 值、有机质(OM)。研究结果如下:1)随改良剂浓度的增加,3 种植物总生物量增量均呈现改良A3 > A2 > A1 > CK 的增长趋势,但各部位生物量增长有差异。2)3 种植物总根长、根表面积、根体积和根尖都随改良剂浓度增加而增加显著(P < 0.05...

In view of the poor physical structure, high toxicity, and low plant survival rate in lead-zinc tailings area, the plants remediation effects of peat soil on lead-zinc tailings were studied in Zixing county, Chenzhou, Hunan. Taking Paulownia fortunei, Nerium oleander and Boehmeria nivea as tested materials, the potted experiments was conducted with the improved lead-zinc slag soil prepared from different peat soil concentrations (gradient: CK: 0, A1: 10%, A2: 20%, A3: 30%). And the biomass of plant roots, stems and leaves, the index of root architecture, the content of lead and zinc in plant a...